Consortiums prepare bids for Dubai sewerage tunnel contracts

16 December 2025

 

Consortiums are preparing to submit bids for the first two packages of the flagship Dubai Strategic Sewerage Tunnels (DSST) project by a deadline of 17 December.

The $22bn public-private partnership (PPP) scheme comprises three packages: J, W and Links.

MEED first reported in November that three consortiums were set to bid for packages J and W tendered by Dubai Municipality’s sewerage and recycled water projects department.

These included:

  • Consortium 1: Led by Plenary Group (Australia) alongside Itochu (Japan) and Infrastructure Holding (UAE) 
  • Consortium 2: Led by Vision Invest (Saudi Arabia) alongside Suez Water Company (France)
  • Consortium 3: Led by Etihad Water & Electricity (UAE) alongside Tamasuk Holding (Saudi Arabia) and Alkhorayef Water & Power (Saudi Arabia)

Under the PPP model, it is understood that each bidding consortium is bringing together equity partners, an appointed operator and a construction contractor.

MEED can reveal that all three consortiums are now close to finalising operation and construction details as part of their bidding package.

Under the first consortium, Plenary has been selected as operator, with construction to be led by Belgian contractor Besix, sources said.

MEED understands that Vision Invest will act as operator for the second consortium, while Suez will lead construction.

In the third consortium, EtihadWE is set to take the operator role, with construction led by France’s Veolia.

Large-scale sewerage network

The DSST masterplan project covers the construction of two sets of deep tunnels terminating at pump stations at Warsan and Jebel Ali Sewage Treatment Plants (STPs). It also includes over 200 kilometres of sewer links.

Construction work was previously categorised in multiple packages under the Warsan Strategic Tunnel Scheme (Package W) and the Jebel Ali Strategic Sewerage Scheme (J1 North, J2 South, J3 Jebel Ali Links).

These packages have now been restructured and renamed.

MEED understands that under the new structure, the J and W packages have a combined value of approximately $16bn. The bid submission deadline for these packages was initially 3 December, before it was extended.

The third Links package, meanwhile, will be tendered next year. 

The three packages are being procured under 30-year design, build, finance, operate and maintain concession models.

The DSST project aims to convert Dubai’s sewerage system from a pumped network to a gravity-based system, enabling the emirate to replace existing sewage pumping stations and meet long-term capacity needs.

The municipality previously launched a refresher request for qualifications in September for developers that had originally been shortlisted under the first prequalification process. 

The DSST programme also marks the first time the municipality will implement In-Country Value (ICV), a local content programme that promotes economic benefits.


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Mark Dowdall
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